LCD device having common line extension and gate line recess of equal areas

Abstract

A liquid crystal display (LCD) device includes a first substrate, gate lines formed on the first substrate, data lines perpendicularly crossing the gate lines to define red, green, and blue (R/G/B) sub-pixels, thin film transistors (TFTs) disposed at each intersection where the gate lines cross the data lines, common lines disposed in parallel with the gate lines, the common lines including a common line capacitance (Cdc) control portion, pixel electrodes insulated from the common lines and connected to the TFTs, a second substrate opposite to the first substrate and bonded to the first substrate, and a liquid crystal layer disposed between the first and second substrates.

1. A liquid crystal display (LCD) device, comprising:
 a first substrate; 
 gate lines formed on the first substrate; 
 data lines perpendicularly crossing the gate lines to define red, green, and blue (R/G/B) sub-pixels; 
 thin film transistors (TFTs) disposed at each intersection where the gate lines cross the data lines; 
 common lines disposed in parallel with the gate lines; 
 pixel electrodes insulated from the common lines and connected to the TFTs; 
 a second substrate opposite to the first substrate and bonded to the first substrate; and 
 a liquid crystal layer disposed between the first and second substrates, and 
 wherein an extension is formed on each of the common lines overlapped with the data lines in the G sub-pixels, 
 wherein a recess is formed on each of the gate lines overlapped with the data lines in the G sub-pixels, 
 wherein an area of the extension is equal to an area of the recess. 
 
     
     
       2. The LCD device according to  claim 1 , further including counter electrodes that contact the common lines, wherein an electric field is formed between each counter electrode and each pixel electrode. 
     
     
       3. A method of fabricating a liquid crystal display (LCD) device, comprising:
 forming gate lines on a first substrate; 
 forming common lines on the first substrate in parallel with the gate lines; 
 forming an insulating layer over the gate lines and the common lines; 
 forming data lines on the insulating layer perpendicularly crossing the gate lines to define red, green, and blue (R/G/B) sub-pixels; 
 forming thin film transistors (TFTs) at each intersection where the gate lines cross the data lines; 
 forming pixel electrodes connected to the TFTs; and 
 attaching a second substrate onto the first substrate with a liquid crystal layer disposed therebetween, and 
 wherein an extension is formed on each of the common lines overlapped with the data lines in the G sub-pixels, 
 wherein a recess is formed on each of the gate lines overlapped with the data lines in the G sub-pixels, 
 wherein an area of the extension is equal to an area of the recess.